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# Failure to re-add failover server


|| **Problem**

I removed my fail-over Server and tried to re-add it back to my site.

I got an error message saying it is already attached to the site.

| **Solution**

Go to the failover server and navigate to:

c:\program files (x86)\Cathexis Server\failover\data\control\

Remove the file called "config.xml".

Reboot the server

The hotspares for a site are identified by their IP address. To change the IP address of a hotspare they should remove it as a hotspare from the site, change the IP, and then re-add it using the new IP.

There are quite clear messages when you remove a hotspare from the site that the hotspare should be connected, so it can clean itself up (remove the configuration). If it is removed from a site without being connected you end up with the problem listed in this FAQ.


**Browse through our useful tutorial videos and manual resources that can be found using the links below:**

||| https://cathexisvideo.com/support/videos/

||| https://cathexisvideo.com/support/documents/